Rotary motor



March Z 1926. 1,575,504

o F.PRESBREY ROTARY MOTOR Original Filed June 10, 1920 3 Sheets-Sheet Z5Patented biliar,J 2, 1926,D

UTIS F. PRESEREY, 0F BRGOKLYN, NEW -YORIL ROTARY MOTOR.

Application filed .'iiine lo, 1920, geriet To all may concern.'

e it known that I, Uris F. Pnnsanr, a citizen of the United States,and'resident of Brooklyn, in the county ot Kings and State of 'New York,have'invented certain new and useful Improvements in Motors,` o f whichthe following cation. f

The inventionrelates to a rotary motor capable. of varied uses andcomprising, in a special construction and arrangement of parts, a rotarycasing from which power may be transmitted, a stationary `shaftextending through said casing and arranged eocentrically thereto, twoparallel sets of cylinders rotatably mounted on said shaft, one of saidsets being high pressure cylinders and the otherV low pressurecylinders, and pistons mounted in the respective cylinders and adapted.thereto and bein free to reciprocate, not being 'fastened eit er to thestationary shaft or to theouter' case ring. The pistons are alternatelyprovided at their outer ends with shoes and rollers to en age the innersurface of the ring or band o the exterior casing,- and the cylinders,within Rotary' is a specifiluid lat appropriate periods at their innerends. I preferably employ within the motorl twelve'cylindeis, six beinghigh pressure cylinders and six low pressure cylinders, and preferablythese two sets of cylinders are formed in integral side by side castingssuitably mounted to rotate on said shaft and confined, with theirpistons, wholly within the exterior casing, which will be oil tight andcontain at all times a suitable quantity or' oii for-lubricationpurposes. The cylinders are radiailydisposed and preferably spaced sixtydegrees apart, and said cylin- .ders are entirely open at `their outerends so as to permit the pistons to readily perform their necessarystrokes. In the opera-` tion of my motor, the cyiinder assemblies areeccentric to the center of the main Acas-` ing, and preferably thedistance between the axial center ot the cylinder assemblies and theaxial center of the rotarylcasing is equal to aboutone-half oit the4stroke of the pistons in said cylinders, and hence duringtheoperationot" the engine the pistons vthan steam, which said pistons move receivethe motive fb No. .387,50. Renewed August 5, 1925.

successively engage, with driving ettect, the inner surface of the casering and edect the rotation of the same. In the construction andoperation of the motor I provide suitable ports so disposed that theHuid pressure is applied to the successive pistons when they are attheir maximum inner oentenor inner position within their res ectivecylinders and the are prescribed y the cylinder and the arepresc'ribedby the case ring are closest together. The distance betweenthese two arcs increases from this point and the length of the pistonstroke is governed by this varying distance, The outer center of thepiston stroke is one hundred and eighty degrees from its inner center,at which point the distance between the aforesaid arcs is the greatest.

I ypresent my invention herein as embodied 1n a rotary motor ada steam,but I do not con the employment of steam as the motive power, since thebroader features of my invention may be embodied in an engine adapted tobe operated by gases, other or liquids under pressure, it eingnecessary, under such circumstances, to properly arrangey the inlet andexhaustI and provide,in'the case of explosive gases, for properignition. When the engine is ted r`to operate on arranged as an internalcombustion engine, ymechanical means will be provided to cause thepistons to travel outwardly on their suction strokes.

The invention resides in the novel features, structure, arrangement andcombinations of parts hereinafter described and claimed and will. befully understood from the detailed specification hereinafter presented,with reference to the accompanying drawings, in which:

Fig. 1 is a side elevation of a rotary motor constructed in accordancewith and embodying my invention; -'Fig; 2 is a vertical section throughthe same, taken on .the dotted line 2--2 of Fig., 5; Fig. 3 is adetailed vertical section through the stationary shaft and particularlyof that portion thereof on which the casting for the high pressure.cylinders is mounted,ja`y

ne the invention to portion oisaid casting being shown-lili"secs-` tion,and Fig. 3 being presented more par-l .ticularly for illustrating thedisposition of the orts Within said shaft and the passages leadingtherefrom to the respective high pressure cylinders;

Fig. 4 is a corresponding view through the shaft and a portion of thecasting in which the low pressure cylinders are formed;

Fig. 5 is a vertical section, taken through the engine, on the dottedline 5-'5 of Fig. 2, but illustrating the cylinder castings as havingbeenso turned into parallelism that the casing, 14 a 'substantiallycorresponding closing plate for the other side of said casing, 15 aclosing cap for the vcentralfportion of one side of the main casing, and16 a retaining ring or plate at the opposite side of said casing. Themain casing as a whole is mounted to rotate around the axial center.

of the axle 10, said casing at one side being mounted on ball bearings17 and at the'other` side on ball bearings 18. The ball bearings 17 areheld between lrace-Ways 19, 20, and the side 14 is recessed, as at 21,to receive said race-ways, the inner race-way 19` being on a cylindricalsection 22 of the axle 10 and the race-Way 20 being exterior thereto andclosely fitting the outer portions of the recess 21. The race-Ways 19,20 are confined at their outer ends by a nut 23 and the aforesaid ringplate 16, which, by means of screws 24, is fastened to theside 14 of them-ain casing. The inner edge of the race- Way 19 abuts against ashoulder 25 provided on the axle 10,' and the inner edge of the race-Way20 abuts against an annular flange-- 26 which matches the peripheraledges of `the ring 27 adording said shoulder 25. At the outer end o fthe eccentrically disposed shaft 11 there is formed a reduced section 28upon which is mounted an eccentric 29, and upon this eccentric, by meansof the aforesaid ball-bearings 18, is mounted the right hand side,looking at Fig. 5, of the main casing of the engine, the ball-bearings18 being disposed between inner and outer race-Ways 30, 31,respectively, and the raceway 30 being set in a recess in the peripheryof the ,eccentric 29 and the race-way 31 in a recess formed in the side13 of the casing. The race-Way 31 is keptin its osition by theengagement of the inner e ges of the closing cap 15 therewith, and therace-way 30 is held in place in its recess bymeans of a retaining plate32 and nutv 33,as will be readily understood on reference to Fig. 5.

opposite edges of the ring 12 by means ofv screws 34.

35 designates the high pressure cylinders, 36the pistons therefor, 37the low pressure cylinders', and 38 the pistons therefor. 'The highpressure cylinders I35 are .preferably formed inv an integral hubcasting 39, and the low pressure-cylinders 37 are preferablycorrespondingly formed in an integral casting 40, and both 'of thesecastings are mount ed side by side upon the eccentric shaft 11, as shownin Fig. 5.

The integral casting 40 for the low pressure cylinders has a hub portionand the series cf cylinders 37 formed therein and said cylinders areopen at their outer ends and at their inner ends have inlet as shown inFig. 4, for the admission of steam at the proper periods to act againstthe pistons 38. The cylinder chambers are formed radially in thecasting-40, as shown in Fig. 2, and, in the construction presented,

I make use of six of the cylinders 37. These f cylinders are integralwith the hub `portion ofthe casting 40 and at adjacent sides areconnected together by webs42, as shown in Fig. 2. The casting 40 ismounted on a sleeve 43 located on the inner or left hand ports 41,

end ofthe eccentrically disposed shaft 11,

43, and between the race-Ways 48, 49 are' ball-bearings 51. 'The blockof low ressure cylinders 37 rotates around the s eeve 43 and upon theball-bearings 46, 51, aswill readily be understood on reference to Fig.5.

The casting 39 for the low pressure cylinders 35 correspondssubstantially, except as to proportions, with the casting 40 for theseries of low pressure cylinders 37. The c linder chambers of thehighressure cyliners 35 are less in diameter t an the cylinder chambersof the low pressure cylinders 37, and said cylinders A35 have openouter` ends and at their inner endsl communicate with or have orts 52for the admission of steam to sai cylinders. The casting 39 iso side ofthe casting `toreceive the right hand portions of the race-Ways 48, 49,Whileat the right hand 39 the hub portion thereof is recessed, as at 54,to receive the racevvays 55,56, between which are lball-bearings 57. Thecasting 39 becomes thus lmounted edge ofthe castinff due binding actiona upon the ball-bearings 51, 57, and, as shown 5, the^race-way 56 abuts;against inner race-Way .49 abuts against a shoulder 50 ofthe sleeve 43,land the inner left hand 39 is adjacent to a shoulder 58 onsaid sleeve43, While the inner race-Way 57 abuts against the end ot the `sleeve 43,said end serving as a shoulder; the castings 39, 40 are thus kept fromunainst each other, and

' said castings may be urther separated by4 a if preferred, of bronze.

`which thin washer 59 of any suitable material, said Washer serving as athrust washer and belng,

IThe Vpistons 36, 38 substantially correa though I preferably the highpressure pistons 36 either flat or make them slightly concave, asindicated by the dotted lines in Fig. 5. There being six of the highpressure cylinders 35, there will be six pistons 36 therefor, and eachalter- .nate piston. 36 Will have, at its outer end, a

roller 60 to engage the lnner surface of the case ring 12, While theother pistons 36 will carryshoes 61 to engage said inner surface lot thecase ring 12, said shoes having convex outer faces and a shank portion62 u'ponja sleeve 63 held vwith the shank portion upon a pin 64extending through the end of the piston and bushing 63. The low pressurepistons 38 are alternately provided with outer-end` rollers 65and shoes66, corresponding With the rollers 60 and shoes 61 of the high pressurepistons 36, and hence not requiring any speciiic description.` Therollers 60,65 are Amounted on pins 67 which extend through thebifurcated outer ends of the alternate pistons 36, 38. The shoes 66 havethe same mounting as the shoes 61 and, as shown in Fig'. 5., the shoes66 are pivotally mounted on bushings 68, held Within the outerreuds ofthe pistons 38 by means of pins 69. Y

Passages Aanni portsfor steam.

The intake port or passage for steam extends through the. shaft 10 andinto the cclshow one except as to diameter, taper the innerends, of thelow pressurel pistons 38, as shown in Figs. 2 and 5., andl 4leavethe'innerends of asses between the outer bifurcateda, ends o thecyhnders and is boredV to swivel or from said slot centric shaft'11 vandis numbered 70, and said intake is shown by dotted lines in Fig. 5 and,as illustrated -breaks through the eccentric shaft 1l at the opening 71(Fig. 3). The delivery end 71 line with a segmental slot 72 formed inthe sleeve 53 on YWhich the hub or casting for high pressure cylindersis mounted, and the steam from the outlet of the intake will pass intoSaid slot 72 and thcrefrolninto any of the ports 52 of the cylinders 35which may pass into line with it. In Fig.'3 we port 52 as travelingtoward the slot,72, another port 52in full engagement with and travelingalong said slot, and a third port` 52 as recedingfrom the slot 52 andpassing upon a solid portion ot ,the s eeve 53. The inlet for live steamis, therefore, through the passage or intake 70. thence from the outlet71' thereof into the slot 72,

and thence into such cylinders 35 as may in register or partly 1nregister with said slot 72. The-steam primarily utilized in the highpressure cylinders 35 exhausts for fursomewhat' longer'slot 73, and thatthe ports 52 of the high pressure cylinders pass into register with saidslot 73, whose purpose is to afford a passage for the exhausty fromthehigh pressure cylinders, as said cylinders become aligned withsaid/slot. The'exhaust steam entering the slot 73 will exhaust into or`enter ports or assages 74, 75, respectively, (Figs. 3 an '5). Thepassage 74-is an elongated hole or passage -cu't through the eccentric`shaft 11 on a. transversely slanting line and has its outlet at 7,6, asrepresented in Figs. 4 and 5.

The passage or practically parallel with the 74, and finally opens intoa slot 77 formed in the sleeve 43 at a point around .which the lowpressure cylinders travel.- The passage or 'port 74 at its outlet 76also discharges port or passage -into the slot 77, and hence the hifrhpressure b steam may exhaustlnto the low pressure so as to increase theport area or ca pacity to carry the steam from the high pressure sidetothe low pressure side of the motor.

The exhaust, from the low pressure cylinders is frolsaid cylinders astheir ports` 41 are carried along and' register with a segmental slot 78in the sleeve 43, as shown at the right hand side of Fig. 4, and thence78 into and through a pas-` sage or port 79 extending from within theeccentric shaft 11 through the axle or shaft 10, as indicated by dottedlines in Fig. 5. I also Aprovide in the axle 10 a. vent passage of theintake 70 is in port 75 extends along ymotor for venting the same.

Operation.

A suitable quantity of oil may be introduced into the chambervof themain casing ot the motor for lubrication purposes, according to wellunderstood principles. Lubrication of the cylinders and pistons may beprovided for by allowing a quantity of oill to drip into'the intakesteam, and excess oil after lubrication of the pistons and cylinders, isallowed to accumulate in the main casing, where it in turn lubricatesthe shoes G1. (56, rollers 60, 65 and case-ring 12. Any leakage of steamfrom the cylinders or steam generated by water condensed Iromsteam-leakage, may exhaust through the passage 80, leaving the oil inthe main casing and relieving the chamber of the casing from anypressure which might otherwise be produced therein.

The cylinder casings 39, 40 are both free to rotate on the ectentricshaft 11 and sleevesA 43, 53, which may be considered as parts of saidshaft, and the casing rotates on the ball-bearings 17, 18.

Steam admitted through the intake passage 70 will pass from theoutletport 71 ot said passage into the segmental slot or elongated port72 formed'in the sleeve 53 and located in the upper left hand ortion,looking at Fig. 3, thereot1 and in t1e ath of the ports 52 formed in theinner en s of the high pressure cylinders 35. As the cylinder block orcasting 39 rotates, the ports 52 thereof are carried along the elongatedport 7 2 and receive steam there rom. Steam entering the ports 52 of thehigh pressure cylinders, drives 'the pistons 36 therein outwardly andthis causes the shoes G1 and rollers 60 of said pistons then active tofirmly engage the inner surface of the ring or baud 12 as may be seen onreference to the upper le'l't hand portion ot Fig. 2. 'lhe engagement ofsaid shoes G1 with the ring 12 eliects the rotation of the main casing,and during this rotation the said rollers 60 slip or roll on the innersurface of the ring 12, so that the pistons under steam pressure but notactively driving the main casing may not retard the rotation of thesame. As the cylinders 35 pass beyond the elongated port 72, ordownwardly counterclockwise therefrom, looking at Fig. 3, the intakesteam becomes cut oit therefrom, and as said cylinders 35 reach thesegmental slot or elongated port 78 the steam confined in said cylindersexhausts into said port 7 S and thence into the passages 74, 7 5 andpasses thence into the segmental slot or elongated port 77 in the sleeve43, whence said steam enters, through ports 41, the low pressurecylinders 37 as said cylinders travel along said port 7 7 The steamwhich enters the successive cylinders 37 passing along the port 77 iseffective to drive the pistons 38 therein outwardly Vto carry theirshoes G6 and rollers 65 outwardly against the inner surface ofthecase-ring 12, with the result that said shoes will act to impartrotary mot-ionto the main casing, in aid of the shoes (31 of the highpressure. pistons, the rollers G5 rolling on said surface. After thesteam which enters the low pressure performed its duty, said steam willexhaust through the elongated slot or port 7S and passage 79.

The high pressure cylinders and low pressure cylinders may assume astaggered order, transversely considered, as shown in Fig. 2, and in theoperation ot the engine both a high pressure piston and a low pressurepiston are always acting with etiiciency to drive the case-ring 12, aswill be understood on reference to. the upper left hand portions ofFigs. 2, 3 and 4. It will also be understood on reference to Figs. 2, 3and 4, that the steam is admitted to the successive rylinders when thepistons therein are at their maximum inner center and when the arcprescribed by said respective cylinders and that prescribed by thecase-ring 12 are closest together, and also that from this admissionpoint the distance between saidtwo arcs gradually increases, the strokeof' the pistons being governed accordingly. The outer center of thepiston-stroke is one hundred andeighty degrees from its inner center,and at this point, or outer center, the distance between the aforesaidarcs is the greatest.

rl`he rotation ofy the main casing of the motor is utilized as a sourceof power which may be transmitted therefrom 1in several ways, inaccordance with the. work to be performed. For illustration, atransmission beltmay be applied directly on the casering 12 to be driventherefrom, thus convert'- ing said ring into a pulley. A* conveyor beltmay also -be applied on the case-ring 12 and driven thereirom. The ring12 may also obviously be utilized asa pulley for la chain drive.

1t the motor should be used on a flying i machine, the cap 15 would beremoved from the casing and the shaft of the propeller of such machinewould bc fastened to said casing in the place ot said cap.

The invention may be applied to use for driving vehicles, in which usetwo of the motors would he employed and serve as hubs for the wheels,the motors being mounted on the dead axle as indicated by the dottedlines at the lett hand side of Fig. 5.

The invention presents many advantages which will be understood withoutelaborate detailed explanation, and among these may be mentioned that ofsecuring the most dicylinders has rect and economical conversion ofpressure into power, 'the greatest starting torque, the lack ofynecessity for a skilled operator, smoothness of operation, small costof pro duction, and ease of assembly and repairs. The engine Willoperate in any position.

lVhen it is desired to reverse the engine.I

'by fluids at present used in motors. Nor

do I confine my invention to the details of form and constructionhereinbefore described adapting the motor to be driven by steam, sincein the illustration of my invention presented herein I have sought to'define the preferred embodiment thereof, .Withoutintending to indicatethat my invention can' not be carried out in other forms andarrangements of mechanical detail.

In case it should be desired to employ a liquid, as oil, for the motivefiiiid, I would employ several corresponding sets ofthe cylinders andpistons and omit low pressure cylinders.

I prefer to form the independently rof tatable cylinder-blocks 39, 40each in one integral casting, but it is to be understood that theseblocks or cylinder-assemblies may be built up in several pieces if sodesired.

`What I claim as my invention and desire to secure by Letters-Patent,is:

1. A rotary motor of the type described comprising a rotary closedcasing from which power is to be transmitted and having sides and anencompassing ring or band secured thereto and having a uniform circularinner surface,a fixed axle on which one of said sides is concentricallymounted, an

eccentric shaft connected at one end with said fixed axle andeccentrically traversing said casing, an eccentric on the other end ofsaid eccentric shaft on which the other side of said casing is mountedand which coopcrates ivithisaid fixed axle in concentrically niountingsaid casing, a removable cap secured to one side of said casing at saideccentric and permitting,r on its removal the removal of the saideccentric, a cylinder-block concentrically mounted on said shaft andhaving a series of radially disposed cylinders provided with ports attheir inner ends,

independent pistons slidable within said cylinders and exposed at theirouter ends and adapted to engage the inner circular surface f of saidband and rotate said casing. and ports having an outlet tothe ports ofsaid cylinders which may be traveling along a portion of their movement`when the arc prescribed by said cylinders and that prescribed by saidcasing are approximately closest together and gradually diverging and anoutlet to register with the ports of said cylinders tol permit exhausttherefrom as said cylinders travel 'beyond 4the active zones for theirpistons. 4

2. A rotary motor of the type described comprising a rotary closedcasing from which power is to be transmitted and havin;r sides and anencompassing ring or band secured thereto and having a uniform circularinner surface, a fixed axle on which one of said sides is concentricallymounted, an eccentric shaft connected at one end with said fixed axleand eccentrically traversing:

said casing, lan eccentric on the other end of said eccentric shaft onwhich the other side of said casing is mounted and which cooperates withsaid fixed axle in concentrically mounting said casing, aI sleeve onsaid shaft and constituting a portion thereof and 'having a largerdiameter at its inner portion than at its outer portion so as to receiveand a permit theconvenient removal of the several parts to bemounted onsaid shaft, a remow able cap secured to one side of saidcasing at ysaideccentric andpermitting on its removal ,the removal of said eccentric, aplurality of side-by-side cylinder-blocks concentrically mounted on saiddiameters of said sleeve and each having a series of radially disposedcylinders provided with ports at their inner ends, the cylinders ofoneblock being iu staggered relation to the cylinders of the otherblock, independent pistons slidable within said cylinders and exposed attheir outer ends and adapted to engage the inner circular surfaceoffsaid band and rotate said casing, ports leading to the ports of saidcylinders which may be traveling along those portions of their movementswhen the arc prescribed by said cylinders and that prescribed by saidcasing are approximately closest together and gradually diverging, andports to register with the ports of said cylinders to permit exhausttherefrom as said cylinders travel beyond the active zones for theirrespective pistons.

3. A. rotary motor of the type described comprising a rotary casinghaving opposite sides and an encompassing ring or band presenting auniform circular surface and from which power is to be transmitted,bearing members on which the opposite sidesY of said `asing are mounted`aplurality of side-byside rotary cylinder-asseniblies each having aseries of radially disposed cylinders and independent pistons slidablethereinf and adapted at their outer ends to engage said circular surfaceof said band and rotate said 'casing and inlet. and exhaust ports forsaid cylinders, said casing and said cylinder-assemblies beingeccentrically disposed with respect to each other, and said inlet portsbeing arranged to admit the motive fluid to the cylinders as they travelalong that portion of their movement when the arc prescribed by saidcylinders and that prescribed by said casing are in near relation andgradually diverging.

4. A rotary motor of the type described comprising a rotary casinghaving o posite sides and an encompassing ring or and presenting auniform circular surface and from which power is to be transmitted,bearing members on which the opposite sides of said casing are mounted,a plurality of sideby-side rotary cylinder-assemblies each havJ ing aseries' of radially disposed cylinders and independent pistons slidabletherein and` adapted at their outer ends to engage said circular surfaceof said band and rotate said casing, and inlet and exhaust ports forsaid cylinders, said casing and said cylinder-assemblies beingeccentrically' disposed with respect to each other, and said inlet Ortsbeing arranged to admit the motive duid to the cylinders as they travelalong that portion of their movement when the arc prescribed by saidcylinders and that prescribed by said casing are in near relation andgraduallygdiverging, and said pistons of each seriesbeing alternatelyprovided at their outer ends with pivoted shoes and rollersfto engagesaid'casing.

5. A rotary motor of the comprising a rotary casing type described avingopposite sides and an encompassing ring or band presenting a. uniformcircular surface and from which power 1s to be transmitted, bear-1 mgmemberson which the'opposite sides of saidicasing are mounted, aplurality of side-v by-side rotary` cylinder-assemblies cach Yhavl' mg aseries-of` radially disposed cylinders and independent pistons slidablewithin said cylinders adapted at their outer ends to engage saidcircular surface of said band and rotate said casing, the cylinders ofone asembly being high pressure cylinders and of the other assemblylowpressurecylinders and said casing and said cylinder-asseniblies.L beingeccentrically disposed with`- relation 'to eachother, an intake formotive fluid' leading to said high pressure cylinders which may betraveling along those portions of their movement when the arc prescribedby said high pressure cylinders and that prescribed by said casing arein near relation and gradually diverging, an exhaust extending from saidhigh pressure cylinders as said cylinders successively travel beyond theactive zone for their respective pistons and leading to said lowpressure cylinders which may be traveling along those portions of theirmovement when the arc prescribed by said low y pressure cylinders andthat prescribed by said casing are near together and graduallydiverging, and an exhaust from said low pressure cylinders as saidcylinders travel beyond 'the active zone for their pistons,l

6. A. rotary motor of the type described comprising a concentricallymounted rotary casing having opposite sides and an encompassing' ring orband presenting a uniform circular surface and :from which power is tobe transmitted, bearing members on which the opposite sides of saidcasing are mounted, a stationary eccentric shafty crossing said casing,a plurality of side-by-side rotary cylinder-assemblies mounted andindependently rotatable on said shaft and each having a series vofradially disposed cylinders and independent pistons slidable thereinadapted at their outer ends to engage said circular surface of said bandand rotate casing having opposite sides and an encompassing ring or bandpresenting a uniform circular surface and from which power is to betransmitted, bearing members on which the opposite sides of said casingare mounted, a stationary eccentric shaft crossing said casing, aplurality 'of -side-by -side rotary cylinder-assemblies mounted androtatable onsaid shaft and each having a series of radially disposedcylinders and indepenent pistons slidable-therein adapted at their outerends to engage said circular surface of said band and rotate saidcasing, the. cylinders of one assembly being high pressure cylinders andof the other assembly low pressure cylinders, an intake for motive Huidleading to said high' pressure cylinders which may be traveling alongthose portions of their movement .when tliearcprescribed by said highpressure cylinders and that prescribed by said casing are in nearrelation and gradually dii/erging, an exhaust extending from said highpressure cylinders as said cylinders successively travel beyond theactive zone for their respective pistonsand leading to Said low pressurecylinders which may be traveling along those portions voftheir movementwhen the arc prescribed by said low pressure cylinders and thatprescribed by saidcasing are'near together and gradually diverging, andan exhaust from said low pressure cylinders as said cylinders travelbeyond the active zone for`t eirlpistons.

Signed4 at New. York city, in the county of New York, and State ofNciv`.York, this l 9th day of June, A. D. 1920.

oTis F. PRESBREY.

